Dundalk head into their European campaign with a ten-point lead in the SSE Airtricity Premier Division.
Goals in either half from Patrick McEleney and Daryl Horgan saw Stephen Kenny's side defeat Finn Harps 2-nil at Oriel Park last night.
Harps boss Ollie Horgan was sent to the stands for the final twenty minutes
He was infuriated at a yellow card given to Harps keeper Ciaran Gallagher for time wasting when Dundalk were making a subsitution.
In another blow to Harps Ruairi Keating was stretchered off after taking a knock to the head in the first half.
Harps next assignment is on Friday when they play bottom of the table Longford Town in Ballybofey.
Three points at home would be a huge boost to their survival in the Premier Division.
Speaking to Ryan Ferry of the Donegal News after the game, Manager Ollie Horgan said their plan worked to a certain degree...